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How do I translate XML into perl variables?

Posted on 2008-10-02
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Last Modified: 2012-05-05
I want to collect InstName and InstID attributes from each node as perl varaiable $InstName and $InstID, then enter $InstName and $InstID into a mysql table.

I think it is something like this:
$xs0 = XML::Simple->new();
$gv8apidata = $xs0->XMLin($returnXML);
print "InstID: $gv8apidata->{'DATA'}{'INSTDEFINITION'}{'InstID'} \n";

but I get error:
encoding specified in XML declaration is incorrect at line 1, column 30, byte 30
 at C:/Perl/lib/XML/Parser.pm line 187


<?xml version="1.0" standalone='yes'?>
<DATA xmlns="data.com">
<INSTDEFINITION InstID="20002149" InstType="Sequential Instrument" InstCode="Insurance Corp" InstName="Z" UnitCode="Contracts" Unit="Contrac
ts" Live="true" EngineID="3" TermFormatID="80" CreditControlTypeID="0" PriceSort
erID="2" AliasBundleID="-2"><DERIVEDFROM InstID="20002148" InstType="Atomic Inst
rument" InstCode="Z" InstName="Z" UnitCode="Contracts" Unit="Contracts" Live
="false" EngineID="3" TermFormatID="1" CreditControlTypeID="0" PriceSorterID="-2
" AliasBundleID="-2" SeriesOfSessionsID="3"/><SEQUENCE SeqID="1000001" SeqName="
Monthly"/></INSTDEFINITION>
<INSTDEFINITION InstID="20001023" InstType="Atomic Instrument" InstCode="ZT" I
nstName="ZT" UnitCode="Contracts" Unit="Contracts" Live="false" EngineID="3" T
ermFormatID="1" CreditControlTypeID="0" PriceSorterID="-2" AliasBundleID="-2" Se
riesOfSessionsID="3"/>
<INSTDEFINITION InstID="20001024" InstType="Sequential Instrument" InstCode="Companies, Inc" InstName="ZT" UnitCode="Contracts" Unit="Contracts" Live
="true" EngineID="3" TermFormatID="80" CreditControlTypeID="0" PriceSorterID="2"
 AliasBundleID="-2"><DERIVEDFROM InstID="20001023" InstType="Atomic Instrument"
InstCode="ZT" InstName="ZT" UnitCode="Contracts" Unit="Contracts" Live="fals
e" EngineID="3" TermFormatID="1" CreditControlTypeID="0" PriceSorterID="-2" Alia
sBundleID="-2" SeriesOfSessionsID="3"/><SEQUENCE SeqID="1000001" SeqName="Monthl
y"/></INSTDEFINITION></DATA>

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Question by:mcgilljd
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Expert Comment

by:Adam314
ID: 22627401
Attach the XML file.  What you posted doesn't give any problems.
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Accepted Solution

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Adam314 earned 500 total points
ID: 22627437
Note that you would get the parameters you are looking for like:
    print "InstID=$xml->{INSTDEFINITION}[0]{InstID}\n";
Where the 0 is replaced with the index of which INSTDEFINITION for which you want the data, 0 through 2 in the XML you posted.  You can get the highest index with this:
    print "Highest index=$#{$xml->{INSTDEFINITION}}\n";
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Author Comment

by:mcgilljd
ID: 22627500
what does $xml represent in print "InstID=$xml->{INSTDEFINITION}[0]{InstID}\n";?

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Author Comment

by:mcgilljd
ID: 22627612
I changed:

$xs0 = XML::Simple->new();
$gv8apidata = $xs0->XMLin($returnXML);
print "InstID: $gv8apidata->{'DATA'}{'INSTDEFINITION'}{'InstID'} \n";

to this:

print "Highest index=$#{$returnXML->{INSTDEFINITION}}\n";


I tried using your code and get
Highest index=-1

does that make any sense?

I cant send the xml it is large.
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LVL 39

Expert Comment

by:Adam314
ID: 22627794
I used $xml instead of $gv8apidata.  Just change the $xml in what I posted to $gv8apidata, and it'll work.
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Author Comment

by:mcgilljd
ID: 22627920
still get:
 encoding specified in XML declaration is incorrect at line 1, column 30, byte 30
 at C:/Perl/lib/XML/Parser.pm line 187
0
 

Author Comment

by:mcgilljd
ID: 22628124
Added
$returnXML =~ s/UTF-16/UTF-8/;
because xml::simple only handles utf-8


Now I get:

not well-formed (invalid token) at line 313, column 83, byte 130100 at C:/Perl/l
ib/XML/Parser.pm line 187
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LVL 39

Expert Comment

by:Adam314
ID: 22629048
Did you get it solved?  You accepted an answer.  Post again if there is still a problem.
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